Improvement in sheet-metal roofs



c. A. SMITH. SHEET METALv ROOF.

Patented May 9,1876..

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-wlTNESSES= Z- N-PEEES. PHDTO-UTHOGRIPHER, WASHINGTON. D C.

UNITED STATES PATENT OFFICE.

CHARLES A. SMITH, OF HANOVERTON, OHIO, A

NATHAN A. HALDERMAN, AND PLAGE.

SSIGNOR TO HIMSELF,

CHARLES CHANDLER, OF SAME Specification forming part of Letters Patent N o.

'o all whom t may concern Be it known that I, CHARLES A. SMITH, of Hanoverton, in the county of Columbiana and State of Ohio, have invented a new and Improved Sheet-Metal Root', of which the following is a specitication:

ln the accompanying' drawing, Figure l represents aI top view; Fig'. 2, a vertical transverse section of my improved sheet-metal roof; and Figs. 3 and 4, a section and top View of the lateral lap-joints of adjoining sheets.

Similar letters of reference indicate corresponding parts.

My invention relates to an improved sheetmetal roof, that may be laid in aperfectly weather-proof manner, Without the use of March 13, 1.876.

nails, screws, or rivets passing through the roof-plates. It may be pnt on the supportinglaths in quick manner, and be easily repaired, as the seams or joints can be opened without injury to the sheets. 1

The invention consists in the combination of the sheets by lap-joints with interlocking anchor-caps, which are placed 'intermediately, and folded to extend over the adjoining i anges of the sheets, in the manner shown.

In the drawing, A represents the sheets of which the roof is constructed. The sheets A are connected by longitudinal lock joints, which are formed by turning up the edges of the sheets or plates at right angles tothe body of the same, and locking the anges orl laps a together by a combined anchor and cap, B, (see Fig. 2,)-which extends from the under side of 011e sheet, intermediately between the anges or laps c a, to the top of the flange of the adjoining sheet; running then down along the same, and being then bent back to overlap the ange-coverin g part,

177, 16s, dated May 9, 1876; application tied and extended finally over the ,top of the lianges, along the ange of the irst plate, t0 bind the iianges together.

The lower anchoring part of the cap B may be nailed to the laths or supports of the roofs at as many points as required, the overlapping and locking cappiece binding the seam of the sheets, in perfectly water and rust proof manner, without any other fastening devices.

'The lateral joints of the sheets areformed by interlocking lap-joints, as shown in Figs. 3 and 4, with suitable anchoring edge-strips.

As the locking-caps B may be readily bent up, to admit of the det-.aching of the sheet without difficulty, leaking sheets may be taken off and the roof repaired in an easier manner than in other sheet-metal roofs.

As there are no nails or rivets through the sheets, they admit of full expansion and contraction. with the changes of temperature, without tearing out or bending up.

The roof presents a smooth surface for painting, and a neat appearance when linished.

Having thus described my invention, I claim as new and desire tosecure by. Letters Patcnt- In combination with the vertically-hanged metallic sheets A, the continuous anchor-capv Y B, hanged and pierced for attachment to the roof, passing between the vertical roof-plate flanges a LQ-bent over the latter on the side opposite to the attachment ange, recurved at c, and finally bent over the flange a, thus forming a weather-proof joint for sheet-metal roofs, substantially as specified.

p CHARLES A. SMITH. Witnesses:

A. V. JOHNSON, MARION MILBOURN. 

